*** ./rivet/build/HepMC-2.06.03/src/GenEventStreamIO.cc	2010-12-17 08:15:22.000000000 -0600
--- ./rivet/downloads/junk/HepMC-2.06.03/src/GenEventStreamIO.cc	2010-08-18 19:09:24.000000000 -0500
***************
*** 241,249 ****
              } break;
  	    case 'H':
  	    {	// we have a HeavyIon line
- 	        //Or probably the end of the file...
- 	      if(num_vertices==0) info.set_reading_event_header(false);
- 	      /*
  		if( info.io_type() == gen || info.io_type() == extascii ) {
  		    // get HeavyIon
  		    HeavyIon ion;
--- 241,246 ----
***************
*** 258,264 ****
  			set_heavy_ion( ion );
  		    }
  		}
- 	      */
  	    } break;
  	    case 'F':
  	    {	// we have a PdfInfo line
--- 255,260 ----